Published June 2011 | Version v1
Journal article

The MIDAS experiment: A prototype for the microwave emission of Ultra-High Energy Cosmic Rays

  • 1. Department of Astronomy and Astrophysics and Kavli Institute for Cosmological Physics, University of Chicago, 5640 S Ellis Ave, 60637 Chicago, IL (United States)
  • 2. Centro Atomico Bariloche and Instituto Balseiro, San Carlos de Bariloche (Argentina)
  • 3. Universidad de Santiago de Compostela (Spain)
  • 4. Universidade Federal do Rio de Janeiro, Instituto de Fisica, Rio de Janeiro (Brazil)

Description

Recent measurements suggest that extensive air showers initiated by ultra-high energy cosmic rays (UHECR) emit signals in the microwave band of the electromagnetic spectrum caused by the collisions of the free-electrons with the atmospheric neutral molecules in the plasma produced by the passage of the shower. Such emission is isotropic and could allow the detection of air showers with 100% duty cycle and a calorimetric-like energy measurement, a significant improvement over current detection techniques. We have built MIDAS (MIcrowave Detection of Air Showers), a prototype of microwave detector, which consists of a 4.5 m diameter antenna with a cluster of 53 feed-horns in the 4 GHz range. The details of the prototype and first results will be presented.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.nuclphysbps.2011.03.135

Additional details

Identifiers

DOI
10.1016/j.nuclphysbps.2011.03.135;
arXiv
arXiv:1010.5224v2;
PII
S0920-5632(11)00205-2;

Publishing Information

Journal Title
Nuclear Physics. B, Proceedings Supplements
Journal Volume
215
Journal Issue
1
Journal Page Range
p. 63-65
ISSN
0920-5632
CODEN
NPBSE7

Conference

Title
12. topical seminar on innovative particle and radiation detectors
Acronym
IDRD10
Dates
7-10 Jun 2010
Place
Siena (Italy)

Optional Information

Copyright
Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.